The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2003
Filed:
Jun. 30, 2000
Applicant:
Inventors:
Hideo Kurokawa, Katano, JP;
Tetsuya Shiratori, Osaka, JP;
Masahiro Deguchi, Hirakata, JP;
Makoto Kitabatake, Nara, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/30 ; H01J 9/02 ; H01J 1/304 ;
U.S. Cl.
CPC ...
H01J 1/30 ; H01J 9/02 ; H01J 1/304 ;
Abstract
An electron emitting device includes at least a first electrode and an electron emitting section provided on the first electrode. The electron emitting section is formed of a particle or an aggregate of particles. The particle contains a carbon material having a carbon six-membered ring structure. The carbon material having a carbon six-membered ring structure contains, for example, graphite or a carbon nanotube as a main component.